I'm not sure how to understand this question...
But if the question is asking about what the cat did, and how you would explain it?
or if they meant to explain that sentence...
if they mean to explain the sentence itself, I would say the answer is
A
But is they meant to tell about the next chapter, I would ASSUME the answer to be
B
A Rhetorical Question is an question that shouldn't be answer so an rhetorical response is an statement that can't be replyed on
The answer is A. A spotter is somebody prepared to search for something. The term has the accompanying uncommon implications.